<template>
  <div style="
    width: 100%;
    height: 100%;
    font-size: 20px;
    display: flex;
    justify-content: center;
    align-items: center;
    background: #f5f7fa;
    color: #909399;"
  >
    <i class="el-icon-picture-outline"></i>
  </div>
</template>